diff --git a/htdocs/install/mysql/migration/3.9.0-4.0.0.sql b/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
index 6999d2da27bc2608e949904ea2519549d0b749bd..4aae6de71e6b0148c865f6e3e7caf2eeb785788b 100644
--- a/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
+++ b/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
@@ -501,3 +501,5 @@ CREATE TABLE llx_oauth_state (
     fk_adherent integer,
     entity integer
 )ENGINE=InnoDB;
+
+ALTER TABLE llx_import_model MODIFY COLUMN type varchar(50);
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